Multi page app - hide pages based on user

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1

I understand that in Streamlit’s multipage app structure, each file in the pages folder is automatically rendered as a separate page in the application’s sidebar. I’m trying to create a Streamlit app where, upon visiting, only a “Sign In” page is initially visible in the sidebar. After a successful sign-in, the app should display the other pages in the sidebar and hide the “Sign In” page.

To achieve this, I need to dynamically show or hide pages in the sidebar based on certain conditions—in this case, whether the user is part of a specified list of users. If the user is on the list, I want to display all pages; otherwise, I only want to display a single page. However, it appears that all files in the pages folder are rendered by default, with no straightforward way to control which pages are displayed based on these conditions.

1 Like
2

Use st.Page and st.navigationto change what pages are available to a user: Define multipage apps with st.Page and st.navigation - Streamlit Docs

3

Hi @SiddhantSadangi, thank you for your response!

I’m using OAuth2Session for authentication and then added the following code:

# List of admin names
ADMIN_NAMES = ["Name"] 

# Function to show the dashboard based on role
def show_page():
    if st.session_state.role == "User":
        st.title("User Page")
        # Display user-specific pages
        user_page = st.Page("user/1_user.py", title="User Page")
        account_page = st.Page(logout, title="Log out")
        st.navigation([account_page, user_page])

    elif st.session_state.role == "Admin":
        st.title("Admin Page")
        # Display both admin and user pages for admins
        user_page = st.Page("user/1_user.py", title="User Page")
        admin_page_1 = st.Page("admin/2_admin.py", title="Admin Page 1")
        account_page = st.Page(logout, title="Log out")
        st.navigation([account_page, user_page, admin_page_1])

# Check if the user is already authenticated and their role
def main():
    if "oauth_token" in st.session_state:
        user_name = st.session_state.user_info['name']  # Get the user's name
        st.write(f"Hello, {user_name}!")
        
        # Check if the user is an admin
        if user_name in ADMIN_NAMES:
            st.session_state.role = "Admin"
        else:
            st.session_state.role = "User"

        # Show the appropriate content based on the user's role
        show_page()

    else:
        if 'oauth_token' not in st.session_state and 'code' in st.query_params:
            handle_oauth_callback()  # Handle the OAuth callback and retrieve user info
        else:
            st.write("You are not logged in. Please log in to continue.")
            redirect_to_login(False)  # Redirect to login page

if __name__ == "__main__":
    main()

However, it’s not functioning as expected. After logging in, the sidebar doesn’t appear. I’m new to using Streamlit and would really appreciate your help with this. Thanks in advance!

4

Hi,

st.navigation returns the current page which can be executed by .run() method, you need to incorporate .run() method in your code.

pg = st.navigation([st.Page("page_1.py"), st.Page(page_2)])
pg.run()
5

The only reason I see for the sidebar not being displayed is the oauth_token not being in session state, or st.session_state.role not in ["User", "Admin"].

After logging in, can you write the contents of st.session_state to check if the oauth_token and roles are as expected?

You can also simplify show_page() to as follows:

def show_page():
    user_page = st.Page("user/1_user.py", title="User Page")
    account_page = st.Page(logout, title="Log out")
    admin_page_1 = st.Page("admin/2_admin.py", title="Admin Page 1")
    
    if st.session_state.role == "User":
        st.title("User Page")
        # Display user-specific pages
        st.navigation([account_page, user_page])

    elif st.session_state.role == "Admin":
        st.title("Admin Page")
        # Display both admin and user pages for admins
        st.navigation([account_page, user_page, admin_page_1])

Since account and user pages will be shown irrespective of the role, try moving them outside the if-else block to see if the sidebar is now being rendered

6

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